/// <summary>
        /// Create a child of this contract listing.
        /// </summary>
        /// <returns>Created contract listing.</returns>
        public ServiceContractListing CreateChild()
        {
            var child = new ServiceContractListing(this);

            return child;
        }
 /// <summary>
 /// Private Constructor.
 /// </summary>
 /// <param name="a_parent">Parent listing.</param>
 private ServiceContractListing(ServiceContractListing a_parent)
 {
     _parent = a_parent;
 }